NBIS vs. BELFB

Last updated Jun 13, 2026

NBIS (Nebius Group N.V.) and BELFB (Bel Fuse Inc.) are both stocks. NBIS operates in Internet Content & Information (Communication Services), while BELFB operates in Electronic Components (Technology). Over the past year, NBIS returned 393.02% vs 241.70% for BELFB. At a 0.27 correlation, their price movements are largely independent.

Performance

NBIS vs. BELFB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Nebius Group N.V. (NBIS) and Bel Fuse Inc. (BELFB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NBIS achieves a 177.59% return, which is significantly higher than BELFB's 73.36% return.

NBIS

• 1D: 4.55%
• 1M: 5.07%
• YTD: 177.59%
• 6M: 164.98%
• 1Y: 393.02%
• 3Y*: —
• 5Y*: —
• 10Y*: —

BELFB

• 1D: -0.90%
• 1M: 9.36%
• YTD: 73.36%
• 6M: 69.86%
• 1Y: 241.70%
• 3Y*: 72.41%
• 5Y*: 84.50%
• 10Y*: 34.34%

*Multi-year figures are annualized to reflect compound growth (CAGR)

NBIS vs. BELFB - Yearly Performance Comparison

	2026 (YTD)	2025	2024
NBIS Nebius Group N.V.	177.59%	202.18%	46.25%
BELFB Bel Fuse Inc.	73.36%	106.32%	-2.59%

Correlation

The correlation between NBIS and BELFB is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.19
Correlation (All Time) Calculated using the full available price history since Oct 18, 2024	0.27

Fundamentals

Market Cap NBIS : $71.79B BELFB : $621.54M
EPS NBIS : $3.17 BELFB : $7.60
PE Ratio NBIS : 73.19 BELFB : 38.65
PEG Ratio NBIS : 25.15 BELFB : 0.94
PS Ratio NBIS : 69.73 BELFB : 3.03
PB Ratio NBIS : 9.91 BELFB : 0.65
Total Revenue (TTM) NBIS : $877.90M BELFB : $701.71M
Gross Profit (TTM) NBIS : $420.60M BELFB : $275.20M
EBITDA (TTM) NBIS : -$52.78M BELFB : $135.78M

Return for Risk

NBIS vs. BELFB — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

NBIS

NBIS Risk / Return Rank: 95
NBIS Sharpe Ratio Rank: 97
NBIS Sortino Ratio Rank: 95
NBIS Omega Ratio Rank: 91
NBIS Calmar Ratio Rank: 97
NBIS Martin Ratio Rank: 95

BELFB

BELFB Risk / Return Rank: 98
BELFB Sharpe Ratio Rank: 99
BELFB Sortino Ratio Rank: 97
BELFB Omega Ratio Rank: 96
BELFB Calmar Ratio Rank: 98
BELFB Martin Ratio Rank: 99

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

NBIS vs. BELFB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Nebius Group N.V. (NBIS) and Bel Fuse Inc. (BELFB). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	NBIS	BELFB	Difference
Sharpe ratio: Return per unit of total volatility	3.50	4.97	-1.47
Sortino ratio: Return per unit of downside risk	3.75	4.35	-0.61
Omega ratio: Gain probability vs. loss probability	1.42	1.60	-0.18
Calmar ratio: Return relative to maximum drawdown	8.03	12.41	-4.38
Martin ratio: Return relative to average drawdown	18.34	36.02	-17.68

NBIS vs. BELFB - Sharpe Ratio Comparison

The current NBIS Sharpe Ratio is 3.50, which is comparable to the BELFB Sharpe Ratio of 4.97. The chart below compares the historical Sharpe Ratios of NBIS and BELFB, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

NBIS vs. BELFB - Drawdown Comparison

The maximum NBIS drawdown since its inception was -58.27%, smaller than the maximum BELFB drawdown of -81.89%. Use the drawdown chart below to compare losses from any high point for NBIS and BELFB.

Drawdown Indicators

	NBIS	BELFB	Difference
Max Drawdown Largest peak-to-trough decline	-58.27%	-81.89%	+23.62%
Max Drawdown (1Y) Largest decline over 1 year	-45.47%	-19.54%	-25.93%
Max Drawdown (3Y) Largest decline over 3 years	—	-36.49%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-36.49%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-79.79%	—
Current Drawdown Current decline from peak	-12.15%	-2.93%	-9.22%
Average Drawdown Average peak-to-trough decline	-18.94%	-36.85%	+17.91%
Ulcer Index Depth and duration of drawdowns from previous peaks	19.86%	6.72%	+13.14%

Volatility

NBIS vs. BELFB - Volatility Comparison

Nebius Group N.V. (NBIS) has a higher volatility of 30.23% compared to Bel Fuse Inc. (BELFB) at 14.25%. This indicates that NBIS's price experiences larger fluctuations and is considered to be riskier than BELFB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NBIS	BELFB	Difference
Volatility (1M) Calculated over the trailing 1-month period	30.23%	14.25%	+15.98%
Volatility (6M) Calculated over the trailing 6-month period	71.43%	36.10%	+35.33%
Volatility (1Y) Calculated over the trailing 1-year period	104.41%	48.91%	+55.50%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	110.20%	51.65%	+58.55%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	110.20%	58.40%	+51.80%

Dividends

NBIS vs. BELFB - Dividend Comparison

NBIS has not paid dividends to shareholders, while BELFB's dividend yield for the trailing twelve months is around 0.10%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BELFB Bel Fuse Inc.	0.10%	0.17%	0.34%	0.42%	0.85%	2.17%	1.86%	1.37%	1.52%	1.11%	0.91%	1.62%
NBIS Nebius Group N.V.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both NBIS and BELFB in my portfolio?

NBIS and BELFB have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, NBIS or BELFB?

NBIS has higher volatility (30.23%) compared to BELFB (14.25%). In terms of maximum drawdown, NBIS dropped -58.27% vs BELFB's -81.89%.

Which has better risk-adjusted returns?

BELFB currently has the higher Sharpe Ratio (4.97 vs 3.50), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.